Jonathan J. expert freelancer in Android, C#, C++, CSS, HTML5, iOS, JavaScript, MySQL, Node.js, PHP, PowerShell, Python, VB.NET, Visual Basic, WordPress, Laravel, Arduino, Xamarin, React.js, Ionic Framework, Vue.js, Flutter, Angular 8

J. J.

Senior Full-Stack Developer

5 / 5

Hourly rate:

USD 30.00

IT & Programming


Ratings from clients

Write a C+ program that convert infix to postfix

Freelancer Wilton B. Wilton B. 3 months ago

"Jonathan is well knowledgeable about the task. He works within the given timeframe and the quality of work he's done is PERFECT. Will definitely hire him again."


About me
As my profile indicates, I possess more than 7 years of progressive
experience in the Web Development and Mobile App Development
field. And lead a team of web & mobile developers
Work history
Software Engineer
April 2017 - February 2018 (11 months)
United States
I had developed lots of mobile and web projects using MEAN and full-stack.
During those days, I had mastered skills according to software engineering.
Go Green Paperless Initiative LLC
Software Engineer
December 2019 - Present (5 months)
United States
- Improved functionality of NAWSC app.
Technologies: Angular, Node.js, MSSQL
North Country Lumber Co
Senior Web Developer
April 2019 - October 2019 (7 months)
United States
-Developed web application and mobile app for management of logging.
- Payment management, Stats, Analytics with full charts.
Technologies; Laravel, IONIC, MySql, Chart.js
4TicoToGo LLC
Full Stack Engineer
March 2019 - October 2019 (8 months)
Costa Rica
- Developed mobile app and web site for food delivery system.
- Admin Dashboard to manage restaurants, customers, delivers.
- Mobile app has 3 roles for customers, restaurant, deliver.
- Analytics, Stats, Payment management, and coupons were added.
Technologies; CakePHP, Android, Swift 5, MySql, Restful API
Test Status
HTML 5 Intermedio
Bootstrap Básico
Javascript Avanzado
PHP Avanzado
MySql Intermediário
CSS Básico
Test de inglés